CN1448365A - Process for preparing lining of ceramic cylinder jacket - Google Patents
Process for preparing lining of ceramic cylinder jacket Download PDFInfo
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- CN1448365A CN1448365A CN 03112361 CN03112361A CN1448365A CN 1448365 A CN1448365 A CN 1448365A CN 03112361 CN03112361 CN 03112361 CN 03112361 A CN03112361 A CN 03112361A CN 1448365 A CN1448365 A CN 1448365A
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Abstract
The present invention relates to zirconia toughened alumina ceramic cylinder liner and its preparation and is especially one ceramic cylinder liner used to replace double-metal cylinder liner in petroleum well drilling field. The main material used includes zirconia, alumina, silica powder, and during the production, monomer, cross-linking agent, initiator, dispersant and solvent are mixed, the mixture is gel molded, sintered in two steps into product. During the sintering, the first step has relatively low temperature and the deformation is corrected to ensure the sintered sizes. The ceramic cylinder liner thus produced has strength up to 320 MPa, toughness of 6.30 MPa, Vickers hardness up to 1200 MPa, simple production process, controlled sintering, and other advantages.
Description
Technical field:
The present invention relates to a kind of preparation method of aluminum oxide (ZTA) ceramic liner liner of Zirconium oxide plasticizing, particularly a kind of preparation method who is applied to the ceramic liner liner of the alternative bi-metal liner of field of oil drilling.
Technical background:
At present, what the petroleum drilling pump liner used is bi-metal liner, and outer cover is metal 35
#Steel, the internal layer lining is high chromium high-carbon cast iron, has wear-resisting preferably and corrosion resistance nature.But because the slush pump working conditions is very harsh, to stand the wearing and tearing of silt particle and the corrosion of highly basic medium for a long time, so, have only 300～500 hours the mean life of bi-metal liner, in the probing of oil development at sea and deep-well, because the slush pump operating pressure is big, erosion corrosion is more serious, and the life-span is shorter.The bi-metal liner life-span is short, is by the character decision of metallic substance.High rigidity is anti abrasive essential condition, vickers hardness hv=780Mpa after high chromium high carbon alloy quenches, the main component SiO of this hardness and silt particle
2Hardness suitable, so serious wear.Chemical stability and cylinder sleeve erosion resistance have substantial connection.Metallic substance is active strong, though chromium can play passivation effect, abrasive action can slacken passivation effect greatly, and makes the corrosion aggravation.As seen the performance of using metallic substance to improve cylinder sleeve by above analysis is limited, must select class high rigidity in essence, and erosion-resisting material could fundamentally solve the problem in work-ing life of cylinder sleeve liner.Select for use fine ceramics material to replace the liner of high chromium high-carbon cast iron as cylinder sleeve, give full play to the wear-resistant and corrosion resistant good characteristic of stupalith, increase substantially the work-ing life of cylinder sleeve, save the chromium metals resources, improve drilling efficiency and become main purpose of the present invention.Simultaneously, produce ceramic-lined cylinder sleeve and also can obtain considerable economic.
Summary of the invention:
In order to realize design of the present invention, selected principal phase material is the alumina-ceramic of Zirconium oxide plasticizing, in the course of processing, add monomer, linking agent, initiator, dispersion agent and solvent respectively, earlier make base substrate with gel casting process, again base substrate is carried out two-step sintering, the first step sintering temperature is lower than the second step sintering temperature, and the distortion to base substrate is aided with rectification in sintering process, guarantees the sintered dimensions of base substrate.
Form by ionic linkage and covalent linkage on the fine ceramics structure, the fusing point height, hardness is big, and hardness generally more than vickers hardness hv=1200Mpa, exceeds hardened steel more than 30%.Simultaneously, pottery is a compound, can regard " material that corroded " as, can not corroded, so selecting fine ceramics material for use is very suitable as the liner of mud slurry pump cylinder jacket again.
The concrete material that the present invention selects is the alumina-ceramic (ZTA) of Zirconium oxide plasticizing, the one, and Zirconia reinforced alumina ceramic has higher hardness, intensity, fracture toughness property and erosion resistance, can satisfy the service requirements under the service condition; The 2nd, processing performance is suitable for the technical parameter requirement of product, promptly in the process of making the ceramic liner liner, can adapt to such as Technologies such as moulding, sintering, processing.
The concrete parameter of selected materials is:
Ceramic powder: AL
2O
3---α phase sintering aluminum oxide, purity are greater than 99%, and particle diameter is the 2-5 micron;
ZrO
3---the 3mol% yttrium stable zirconium oxide, foreign matter content is not more than 1%, and particle diameter is the 1-5 micron;
SiO
2---the submicron-grade superfine silicon oxide, purity is greater than 99%;
CaO---calcium oxide;
Monomer: acryloyl ammonium;
Linking agent: N, N '---methylene-bis acryloyl ammonium;
Initiator: ammonium persulphate;
Dispersion agent: acrylic anionic dispersing agent;
Solvent: water---deionized water, every milliliter of number of ions is not more than 20; Ammoniacal liquor---content is 20%.
The principal phase of product ceramic is the aluminum oxide of Zirconium oxide plasticizing.
The present invention adopts the gel casting process molding blank, omnibearingly high-density, high strength, high uniformity have been satisfied, series technique requirements such as near net-shape, the relative density of the base substrate that it is processed into reaches 67%, and intensity reaches 30Mpa, and dry shrinkage is 1%, and inner flawless, save equal pressing equipment, need not go processing again, reduced cost.
The processing step of gel casting forming base substrate mainly contains: with the acryloyl ammonium is that monomer, methylene-bis acryloyl ammonium are that linking agent, acrylic anionic dispersing agent, water and ammoniacal liquor are that solvent prepares premixed liquid, add ceramic powder and carry out ball milling, add initiator and stir the back casting, the dry back demoulding and burn off organic substance are made bad body.Detailed process is as follows:
1. monomer and the linking agent ratio with 40: 1 is dissolved in the water;
2. adding ammoniacal liquor adjusting pH value is 9-10;
3. the adding dispersion agent mixes, and is heated to 50-60 ℃, makes premixed liquid;
4. take by weighing AL respectively
2O
3, ZrO
3, SiO
2Powder, AL
2O
3Content is 60%-80%, SiO
2Content is 0.5%-5%,
The rest is ZrO
3
5. powder, premixed liquid are poured in the urethane ball grinder, used the alumina balls ball milling 12-16 hour, make the solid phase body
The integration number is 60% slurry, and viscosities il is 100PaS, good fluidity;
6. with the slurry degasification, add 1% initiator then, be cast in the mould after mixing;
7. mould and slurry are together put into baking oven and be heated to 80 ℃, and be incubated 1 hour;
8. slough mould,, put into baking oven 40-120 ℃ of baking 6-10 hour the blank nitrogen protection;
9. organism such as 600-800 ℃ of burn off monomer, linking agent are made base substrate and are used for two-step sintering in electric furnace.
The sintering of base substrate is the committed step that influences product distortion and product cost, the two-step sintering technology that the present invention has adopted computer control automatically to carry out when blank sintering is become product ceramic, substantially satisfied requirement, made ceramic-lined sintering obtain ideal product result shrinking and being out of shape.The basis that reduces shrinkage strain is to improve blank density and homogeneity.This has had assurance at formative stage, and the core concept of two-step sintering is that contraction and distortion substep are finished and corrected at random in sintering process.Concrete steps are as follows:
The first step sintering carries out under low relatively temperature, temperature is controlled at 1400 ℃ and is incubated 2 hours continuously, ceramic-lined base substrate is carried out presintering, belong to solid state sintering, no big distortion, make it reach certain density and suitable intensity, shrinking percentage reaches 35% of total shrinkage, eliminates the internal stress that causes gross distortion simultaneously.
The second step sintering carries out under high relatively temperature, the control sintering temperature is incubated 2 hours continuously at 1600 ℃, the base substrate that allows the first step sintering finish fully shrinks, finish final densification, and little distortion is aided with orthopedic measure, after sintering was finished, total shrinkage was 9.5%, the relative density of porcelain body reaches more than 98.5%, and total deflection is controlled at 0.5%.Guaranteed ceramic-lined size, can make process redundancy be controlled at 0.5-0.8mm, created condition for reducing processing charges.After tested, the fundamental property of the ceramic liner liner of the present invention's preparation is: intensity is 320Mpa; Toughness K
2cBe 6.30MPaM
1/2Vickers hardness hv is 1200Mpa.
As seen, not only technological process is simple to use the technology of the present invention, control level of automation height, and production efficiency is good, and production ceramic liner liner yield rate is much improved; Production cost reduces, and be 5 times of bi-metal liner the work-ing life of ceramic liner liner, can reach 2000 hours.
Embodiment:
Example 1: make the slurry pump ceramic cylinder jacket liner: weigh third rare acyl ammonium 110 grams and methyl pair acryloyl ammoniums 2.5 grams and pour in the beaker, add entry 400 grams, regulate pH value to 9-10 with 20% ammoniacal liquor with the present invention.Add acrylic acid base anionic dispersing agent 2.1 grams, premixed liquid is made in abundant dissolving, and premixed liquid adding aluminum oxide and the zirconium white powder of making weighed 3000 gram mixing altogether.Its solid load reaches 62%.Make medium with agate ball in the urethane ball grinder, ball milling 10 hours obtains rarer slurry.After the degasification, initiator 3.3 grams with 1% join in the slurry, mix, and are injected in the mould that processes, and are heated to 80 ℃, are incubated 1 hour and make its abundant gelation.Slough mould, standing and drying is 24 hours in nitrogen atmosphere, 40-120 ℃ of segmentation oven dry, makes the blank body.According to calculating good amount, machining blanks stays enough shrinkage and post-treatment surplus.Controlled temperature is removed organism such as monomer and linking agent 700 ℃ of insulations 2 hours in middle temperature electric furnace, is warmed up to 1400 ℃ of insulations 2 hours again, and cooling becomes base substrate then.Base substrate is put into the high temperature saggar carry out the secondary reshaping sintering, controlled temperature was 1600 ℃ of insulations 2 hours, and cooling obtains preliminary sample then.Sample is roughly ground with No. 100 diamond wheels, with No. 240 adamantine polishing wheel correct grindings, be processed into Φ at last then
In114.3 * 280mm wall thickness 5mm, cylindrical shrink range 0.27-0.32mm, interior round smooth finish is less than 0.1mm, the ceramic liner liner of weight 2600 grams.
Example 2:, make Φ with the identical method steps of embodiment 1
InThe cement pump ceramic liner liner of 90 * 240mm, wall thickness 14mm, cylindrical shrink range 0.30mm, interior round smooth finish is less than 0.1mm.
Claims (4)
1. the preparation method of a ceramic liner liner, it is characterized in that selecting for use the alumina ceramic material of Zirconium oxide plasticizing, in the course of processing, add monomer, linking agent, initiator, dispersion agent and solvent respectively, earlier make base substrate with gel casting process, again base substrate is carried out two-step sintering, the first step sintering temperature is lower than the second step sintering temperature, and the distortion to base substrate is aided with rectification in sintering process.
2. the preparation method of ceramic liner liner according to claim 1 is characterized in that used ceramic powder is aluminum oxide, zirconium white, silicon oxide, calcium oxide; The principal phase of pottery is the aluminum oxide of Zirconium oxide plasticizing.
3. the preparation method of ceramic liner liner according to claim 1, the processing step that it is characterized in that the gel casting forming base substrate has: with the acryloyl ammonium is that monomer, methylene-bis acryloyl ammonium are that linking agent, dispersion agent are that acrylic acid base anionic dispersing agent, water and ammoniacal liquor are that solvent prepares premixed liquid, add ceramic powder and carry out ball milling, add initiator and stir back casting, dry rear demoulding and burn off organic substance.
4. the preparation method of ceramic liner liner according to claim 1 is characterized in that the first step sintering controlled temperature is incubated 2 hours continuously at 1400 ℃; The second step sintering controlled temperature is incubated 2 hours continuously at 1600 ℃, and the base substrate that allows the first step sintering finish fully shrinks.
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|---|---|---|---|
| CN 03112361 CN1237024C (en) | 2003-04-28 | 2003-04-28 | Process for preparing lining of ceramic cylinder jacket |
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|---|---|---|---|
| CN 03112361 CN1237024C (en) | 2003-04-28 | 2003-04-28 | Process for preparing lining of ceramic cylinder jacket |
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| CN1237024C CN1237024C (en) | 2006-01-18 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100408857C (en) * | 2006-07-25 | 2008-08-06 | 湖南泰鑫瓷业有限公司 | Preparation method of high pressure slurry pump ceramic cylinder jacket for well drilling |
| CN101792305B (en) * | 2010-02-09 | 2012-08-08 | 赵宁 | Ultrastrong wear resistant corundum-boron carbide liner composite material |
| CN103102161A (en) * | 2013-01-31 | 2013-05-15 | 苏州晶瓷超硬材料有限公司 | Ceramic plunger moulding process |
| CN103771838A (en) * | 2014-01-07 | 2014-05-07 | 广铝集团有限公司 | Composite material for high-abrasion powder pump and venturi tube |
| CN104291815A (en) * | 2014-09-25 | 2015-01-21 | 无锡康柏斯机械科技有限公司 | Wear-resistant corrosion-resistant toughened ceramic cylinder liner and preparation method thereof |
| CN104496423A (en) * | 2014-11-18 | 2015-04-08 | 山东硅元新型材料有限责任公司 | 99 alumina ceramic cylinder sleeve inner liner material used for petroleum drilling well and preparation method thereof |
| CN104761262A (en) * | 2015-03-23 | 2015-07-08 | 宁夏机械研究院股份有限公司 | Silicon carbide ceramic cylinder sleeve for well-drilling slurry pump and preparation method of silicon carbide ceramic cylinder sleeve |
| CN109748568A (en) * | 2019-02-28 | 2019-05-14 | 荣县明峰陶业有限公司 | Automation pottery product processes |
| CN116217241A (en) * | 2023-02-23 | 2023-06-06 | 潮州三环（集团）股份有限公司 | Ceramic sintering method and application thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101073939B (en) * | 2007-06-18 | 2010-05-19 | 湖南华联特种陶瓷有限公司 | Toughened alumina ceramic overlapping curved pipe of high-performance zirconium oxide and its production |
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2003
- 2003-04-28 CN CN 03112361 patent/CN1237024C/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100408857C (en) * | 2006-07-25 | 2008-08-06 | 湖南泰鑫瓷业有限公司 | Preparation method of high pressure slurry pump ceramic cylinder jacket for well drilling |
| CN101792305B (en) * | 2010-02-09 | 2012-08-08 | 赵宁 | Ultrastrong wear resistant corundum-boron carbide liner composite material |
| CN103102161A (en) * | 2013-01-31 | 2013-05-15 | 苏州晶瓷超硬材料有限公司 | Ceramic plunger moulding process |
| CN103771838A (en) * | 2014-01-07 | 2014-05-07 | 广铝集团有限公司 | Composite material for high-abrasion powder pump and venturi tube |
| CN103771838B (en) * | 2014-01-07 | 2016-08-17 | 广铝集团有限公司 | A kind of composite for high abrasion powder pump Yu Venturi tube |
| CN104291815A (en) * | 2014-09-25 | 2015-01-21 | 无锡康柏斯机械科技有限公司 | Wear-resistant corrosion-resistant toughened ceramic cylinder liner and preparation method thereof |
| CN104496423A (en) * | 2014-11-18 | 2015-04-08 | 山东硅元新型材料有限责任公司 | 99 alumina ceramic cylinder sleeve inner liner material used for petroleum drilling well and preparation method thereof |
| CN104761262A (en) * | 2015-03-23 | 2015-07-08 | 宁夏机械研究院股份有限公司 | Silicon carbide ceramic cylinder sleeve for well-drilling slurry pump and preparation method of silicon carbide ceramic cylinder sleeve |
| CN109748568A (en) * | 2019-02-28 | 2019-05-14 | 荣县明峰陶业有限公司 | Automation pottery product processes |
| CN116217241A (en) * | 2023-02-23 | 2023-06-06 | 潮州三环（集团）股份有限公司 | Ceramic sintering method and application thereof |
| CN116217241B (en) * | 2023-02-23 | 2024-05-17 | 潮州三环（集团）股份有限公司 | Ceramic sintering method and application thereof |
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| CN1237024C (en) | 2006-01-18 |
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